Europe 2
North America 63
William H. Harsha Bridge 5
| | Buildings and Bridges - Technology, Science, School Time, Kids and Teens 35
Construction and Planning - Roads and Highways, Recreation 24
Online Traffic Cameras - Roads and Highways, Recreation 46
Bridge - Structural Engineering, Technology, Science 427
 Bridge of the Month QuizBridge of the Month Quiz
 An image is posted inviting entrants to identify the feature. A free copy of a book on the subject is awarded to one correct entrant per month.
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Bridgepix.comBridgepix.com
 Contains photographs and scans of other media of subjects worldwide.
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MrTunnel.comMrTunnel.com
 Discusses many projects.
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A Span For All SeasonsA Span For All Seasons
 A collection of photographs of facilities and a large worldwide inventory of suspension bridges.
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The Tunnel PageThe Tunnel Page
 The longest road and rail tunnels in the world, grouped by categories such as sub-sea tunnels and immersed tubes.
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